Errors installing VB5.2.2.. what am i doing wrong?

[Markme ybm]

I've installed vbulletin many many many times in the past, working for different forums and having my own.
But this VB 5.2.2 is giving me head aches..
Fatal errors, syntax errors, 500 internal errors and the website is not displaying correctly and I am unable to even login after a fresh install(for the fifth time).

I am in desperate hopes that you are able to help me or atleast give me a solid idea of what I may need to do.

www.youngbloodmatters.com

Thank you in advance!

--------------- Added [DATE]1464092331[/DATE] at [TIME]1464092331[/TIME] ---------------

I have spent a couple hours on the phone to my hosting company, they made a few server side changes, but they are at a loss now and have recommended contacting vbulletin.